3 : he wants to use his money for philanthropic cause. I can't overstate how great it is. The way he uses his money though, has been pretty controversial. From pushing a pro patent agenda in countries that are too poor to afford medicine made under that system to accusations of straight up using his money so his ideas are applied, even when they go against actual experts with data (and actual expertise) to back their positions.
3 : he wants to use his money for philanthropic cause. I can't overstate how great it is. The way he uses his money though, has been pretty controversial. From pushing a pro patent agenda in countries that are too poor to afford medicine made under that system to accusations of straight up using his money so his ideas are applied, even when they go against actual experts with data (and actual expertise) to back their positions.
For the lazy, there was a recent video on the topic : https://www.youtube.com/watch?v=P-fqcFaZKHQ